Refrigerator



F. T. LYNCH REFRIGERATOR Filed 00's. 17. 1921 July 17, 1923.

IGJ.

l INVENTOR.

UYATTRNEY.

Patented July I7, i923..

Sernin tiene nnrniennn'ion.

appiicauonnied october 17, i921. semi no. 508,123.

TooZZwLom z5/may concern:

Be it known that I, FnANcismT. LYNCH,

' acitizenof the United States, .residing at Baltimore city, in' the State of Maryland, have invented a new and useful Refrigerator, of which the following is a specili- CatiOn. f n 'The object of my invention is the providing of improvedmeans of refrigeration or freezing.

A further object of my invention is ythe providing of a suitable refrigerator in which my improved meansmay be used.

A further object of my invention isth'e providing` 'of a freezing cli-amber around which a brine of varying density may cir-y culate. Y

A further object of my invention isthe providing of a freezing chamber, thetop of which is-in contact with a soluble freezing mixture. the solution from which may be separated therefrom, and may circulate around the sides of said chamber.

With the foregoing and other objects in view, my invention consists of the novel construction and arrangement ofpart-s as hereinafter specifically'described and illustrated in the accompanying drawing. where,- in isshown the preferred embodiment of my invention, but it is understood that changes, variations and modifications may be `resorted to which come withintbe scope of theclaims hereunto appended. l

My inventiony differs from the ordinary ice cream freezer, in that, I separate the undissolved portions of the freezing come pound, so called, from the dissolved portion. `The latter I strain into a jacket' around my freezing chamber. In this Way I am enabled to maintain a uniform de- `ree of melting, and liquid *circulation around my freezing chamber without an undue lowering of temperature locally.

In the apparatus shown'. with a mixture of saltfand ice, Iwas enabled to obtain a uniform constant temperature of 10 F.y with the ratio lof mixture used, even when considerable new matter was introduced into the freezing chamber tobe frozen. s

In the drawing of the herein described embodiment of my invention, Figure .l shows. a sectional view in'elevation of a refrigerator suitable for my system of refrigeration. This view is taken through `what I claim and desire to 1 1 of Fig. 2, whichis a plan view with the cover removed and one side Wallin sect-ion, to better show one entrance into the freezingl r chamber. n n

Similar numerals refer to similar parts throughout the several views.

lisk the outside shell. 2 is the insideshell, between which two shells is insulating material 3, suchas cork or other suitablesubstance. 4 is a metal lining.' 5 is the freezing chamber, the walls y6 of which are separated from metal lining' 4C, forming a space 7 in which the coolingq brine-or liquid may circulate. y8 is the top* of this space?, and

is provided with openings or holes`9, which performfthe function` ofV straining' the coolingr liquid and separating it from the freezing` mixture.

. 0 is the freezing' mixture chamber, which `may befilled with salt and icey properly mixed for freezing purposes. ll is a drain cock at the bottom ofspace 7 for draining the refrigerator when desired.

The operation of my invention is as follows:

Broken ice and ksalt co-min,f 'led, are placed in the chamber 10, and the brine from the melting' of the same flowsthrougli openings 9 until space 7 is filled. then the .brine covers the top of thefreezing'chamber and the freezing mixture and brine are brought together. when agradual circulation takes place, the denser brine tending to no to the bottom of space 7.

Freezing mixture be added in chambei' 10 yas desired.k and the liquid may be drawny from drain 11, thus regulating the height ofthe liquid in freezing chamberlO, which determines, ina measure. the tem-l perature obtained in the freezing chamber.

Having` thus describedv vmy invention,

secure by Letters Patent isy l. A' refrigerator,comprising a freezing chamber, a freezing mixture chamber above said freezing' chamber. .ay space on the side -ofsaid freezing chamber in screened communication with said freezing mixture chamber, and means for regulating the height of brine resultingfrom the melting of the freezing mixture in said space and said freezing mixture chamber at a desired point,ab'cve said freezing chamber.

L 2. In a refrigerator, a freezingk chamber provided with a space on the side of said and the melt therefrom is permitted to drain chamber Within said refrigerator, a freezthrough and occupy seid space at the side ing mixture chamber above said freezing' of said 'freezing chamber.

chamber he Hoor of which is provided with FRANCS T. LYNCH. lateral extensions forming e screen over said Witnesses: space at the side of said freezing chamber 'WALTER RvHnATH, whereby the solid refrigerant is retained VILLIAM H. VARNEY. 

